...
MikroTik ROS normally uses paging for output (for example, try running "/interface print" on a router with multiple interfaces when the terminal vertical size is low). This means our ROS driver must support paging, or Mass Config Push would not work as expected. However, the backup command on ROS ("/export") is NOT paged. On MikroTiks with very long config, high CPU load, or if many items in the config database on the device exist (such as full BGP route tables), the output of "/export" will take a long time. Since the default per-page timeout is 20 seconds, backups would routinely fail on such routers. This is why we introduced a multiplier to the timeout value.
...